Finding the Fourth Proportional to 1,888.52, 2,606.18 and 1,142.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,888.52 : 2,606.18 = 1,142.56 : x
2. Step 2: Convert to fraction form
   1,888.52/2,606.18 = 1,142.56/x
3. Step 3: Cross multiply
   1,888.52x = 2,606.18 × 1,142.56
4. Step 4: Simplify right side
   1,888.52x = 2,977,717.02
5. Step 5: Solve for x
   x = 2,977,717.02/1,888.52
6. Step 6: Final answer
   x = 1,576.75